Well, first I want to thank everyone who sent me helpful advice -- even to my dumber questions. I thought I'd share what I have learned about upgrading the Power Mac 6500/250. I found the two screws and pulled the mother board. Duh! How easy can it get. I cleaned out the dust bunnies (grounded of course) and removed the single 32 meg DIMM that was installed. Here is where I discovered an obvious difference between the 6400/200 and the 6500/250. The 6400 has 8 megs of memory wired onto the board and takes two 64 meg DIMMS for a total of 136 megs while the 6500 will only take two 64 meg DIMMs for a total of 128 meg. Go figure. Since I already had two 128 meg DIMMS waiting to put into my second Power Tower Pro, I tried putting them into the 6500. The good news is that they worked. The bad news is that the computer only sees two 64 meg DIMMS. That was the result of both the "About this computer" and the "Apple System Profiler." Does anyone know if there is a "fix" for this problem that would allow the computer to recognize all 256 meg? My next discovery was that the onboard video card would allow me to hook up a 21-inch VGA monitor (via the VGA/Mac cable adaptor) and run it in RGB mode. My pennultimate discovery to date has been that there is still a vast difference in pricing of memory. From $40/64 meg DIMM to $19.95/64 meg DIMM (Velocity Upgrades). There may be even cheaper prices, but my time is worth something so I discontinued the search and ordered two of those. My very last discovery was that even Velocity Upgrades website can be educational. On the initial memory upgrade page they list the Power Mac 6400 under both the EDO and FPM memory pricing. How is that for strange? Also, on Velocity Upgrade's site they show the 6400 and 6500 as taking a maximum of 128 meg and show the choices up to 64 meg DIMMs with pricing. On the Power Tower Pro they show a maximum of 512 megs of memory (8 slots of 64 meg DIMMS), BUT they also show the part number and pricing for 128 meg DIMMS which we all know work just fine in the PTP for a total possible of 1024 meg. Isn't that right? That would lead me to suspect that there is no fix for the 6500 to use 128 meg DIMMs. Still open to information and suggestions. Thanks for the help. Fred Meredith -- Power Computing is sponsored by <http://lowendmac.com/> and... 123Inkjets.com <http://lowendmac.com/ad/123inkjets.html> Support Low End Mac <http://lowendmac.com/lists/support.html> Power Computing list info: <http://lowendmac.com/power/list.html> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> List archive: <http://www.mail-archive.com/powercomputing%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
